“Then I get off the couch and do it.”

“This is true of any core moves, and forearm planks are no exception!”

“The side plank targets muscles differently than the regular sunny-side-down plank,” says Spencer-Browning.

Kendall Jenner Abs Workout

@kendalljenner/ design by Dion Mills

Single arm/leg plank: 15 seconds

Sick of planks yet?

Hope not, because this single-arm plank is giving you a trifecta of benefits.

“This exercise is like a bicycle crunch and high plank in one,” says Spencer-Browning.

How To Do Forearm Plank

“It creates a strong and stable core while simultaneously activating the muscles across the hips.”

“Crunches develop the muscles on the front of the core,” says Spencer-Browning.

It’s important to verify you have the correct form for this move.

How To Do High Plank

Bicycle crunch: 30 seconds

No bike required for this crunch.

“It also calls into play the oblique muscles because of the rotational nature of the movement.”

Keep things slow and steady with this move until you feel you’ve mastered it.

How To Do Side Plank

“You’ll be surprised how much coordination goes into doing a bicycle crunch!”

“It improves coordination between the upper and lower body, while simultaneously improving relative strength.”

Joi points out other benefits too.

How To Do Side Plank With Crunch

Frog crunch: 15 reps

Leg lifts: 15 per leg

How To Do Single Arm Leg Plank

How To Do Rocking Plank

How To Do Knee-to-elbow Plank

How To Do Classic Crunch

How To Do Bicycle Crunch

How To Do Vertical Crunch

How To Do Frog Crunch

How To Do Leg Lifts